image_file = models.ImageField(upload_to='images') image_url = models.URLField()
from django.db import models
from django.core.files import File
from urllib.request import urlopen
from tempfile import NamedTemporaryFile
class Item(models.Model):
image_file = models.ImageField(upload_to='images')
image_url = models.URLField()
def save(self, *args, **kwargs):
if self.image_url and not self.image_file:
img_temp = NamedTemporaryFile(delete=True)
img_temp.write(urlopen(self.image_url).read())
img_temp.flush()
self.image_file.save(f"image_{self.pk}", File(img_temp))
super(Item, self).save(*args, **kwargs)